Patent:FR554047
Patent: | FR 554047 |
Title: | Dispositif automatique de remise à zéro pour machines à calculer |
Date: | 23.02.1923 |
Place: | |
Country: | France |
Person: | |
Company: | Soc. Chateau Freres (P) et Cie |
Internal Links: | |
Keywords: | |
Link to the patent office: (without guarantee) | ![]() |
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